{"id":46,"date":"2014-09-22T07:16:00","date_gmt":"2014-09-22T07:16:00","guid":{"rendered":"http:\/\/onlinelab.info\/2014\/09\/22\/what-is-xen\/"},"modified":"2014-09-22T07:16:00","modified_gmt":"2014-09-22T07:16:00","slug":"what-is-xen","status":"publish","type":"post","link":"https:\/\/www.asianux.org.vn\/index.php\/2014\/09\/22\/what-is-xen\/","title":{"rendered":"What is Xen\u00ae?"},"content":{"rendered":"
What is Xen\u00ae?<\/b><\/div>\n
The Xen\u00ae hypervisor, the most powerful open source industry standard for virtualization, it offers  powerful, efficient, and secure feature set for virtualization of x86, x86_64, IA64, ARM, and other CPU architectures. It supports a wide range of guest operating systems including Windows\u00ae, Linux\u00ae, Solaris\u00ae, and various versions of the BSD operating systems.<\/span><\/div>\n
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Getting Started:<\/b><\/div>\n
In Xen systems the Xen hypervisor is the lowest and most privileged software layer. This layer supports one or more guest operating systems, scheduled on the physical CPUs. The first guest operating system, called in Xen terminology <\/span>domain 0<\/i> <\/span>(dom0) is executed automatically when the hypervisor boots and receives special management privileges and direct access to all physical hardware by default. The system administrator can log into dom0 in order to manage any additional guest operating systems, called user domains (domU<\/i>) in Xen terminology.<\/div>\n
The dom0 domain is typically a modified version of Linux, NetBSD or Solaris. User domains may either be unmodified copies of open-source or proprietary operating systems, such as Microsoft Windows, if the host processor supports x86 virtualization, e.g., Intel VT-x and AMD-V),[3]<\/sup> <\/span>or modified, <\/span>para-virtualized<\/i> <\/span>operating system with special drivers that support enhanced Xen features.<\/div>\n
Features:<\/b><\/div>\n